US PATENT SUBCLASS 348 / 670
.~.~.~ Including frame or field delays

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
663  DF  .~ Chrominance-luminance signal separation {2}
665  DF  .~.~ Including comb filter (e.g., using line, field, frame delays) {3}
670.~.~.~ Including frame or field delays

DEFINITION

Classification: 348/670

Including frame or field delays:

(under subclass 665) Subject matter wherein signals are combined in different vertical scan periods.